Method of mothproofing



i Patna Aug. I a a 1 5 gU NI TED jSTATES PATENT orrlcs.

aosnrn 1t; noss,-or Imw your, 1:. Y.,' ass'rcuon, n! nmnc'r an) intern: Assroxm-rs', or-orm rmmr 'ro rsmomi 3. aces AND nmnrnmronrmms no rumor .1. Boss, BOTH or mew roux, n. Y., am) ous-ronrm'rn T 21mm some 21:.- eanr; or Lmnoox, NEW roan. munch. on 'uornrnoorn e. no Drawinz. Application filed Jul 25,1924. serialmfmau.

This invention is an improvement in as face-finished, are steam finished to promethods of moth-proofing, and with respect vide'luster. When the web is converted mto I to its more specific features, in methods'apgarments, the garments are steamed and 55 plicable in the usual procedure ofconvertpressed, and this operation, which applies h ing textiles from the raw to the finished especiall to mens garments, is repeated state, and without varying from such usual during t e life of the garment at intervals procedure. Y I varying in accordance with the taste or As is known, textiles, especially woolens, means of the wearer, to restore the shape.

are particularly susceptible to the ravages and freshness of the garment. This is true '10 of moths, or rather to those of the moth also' of womens garments, particularly larvae, and ,the eggsfrom which the larvae woolens. I Y hatch may be depositedat any stage in the Steam is an ideal carrier for the composilife of the textiles.

Certain (substances, as for instance camtion, and is alsouseful' in converting the placed in or about-the. textiles, may, deter of the present invention is to provide athe moth. from laying the eggs, but they do method of applying the solution -forming not prevent the development of the larvae, the subject matter of the above-mentioned 'nor limit their ravages. Moreover, the odor application, by means of steam at some stage v 2 from such substances is disagreeable and 0f the process'of converting the textiles into tenacious, lingering after the substance it-' finished articles, m such manner that it will self is removed. Hence their use is possible not interfere with the usual procedure, nor

storage inhibits the hatching of the egg, but 1 steps, or by variations in or from the usual does not destroy the life principle, and the steps.

egg may hatch and the larvae develop after With this object in View, I incorporate the reniloval of the textiles to a more genial he moth proofing compound-in the liquidatmos ere. 1 In application, Serial No. 650,938, treat the goods in some stage-of the normal 80 filed J y 11,1923, there is described and procedure. As for instance, thecompound claimed a com sition especially efiicacious mag) be used in the steam which is applied for moth proofifig textiles, in that it is do in rushing the web, or in shrinking. The

tion when in atomized or nebulized condi- 9 phor, naphthalene, and. the, like, when solution into a nebula and a primary object 7 only when the articles are in storage. Cold complicate such procedure by additional from which is derived the steam used to 80 str'uctive to moth larvae while non-toxic to solution may be mixed with the water in the vertebrates, odorless, stainless and harmless boiler from which the steam is generated 1 to the mostdelicate fabric. The preferred or if preferred, itmay be placed in a sepai method ofappl ng the composition'as set rate tank or boiler, through which the steam *forth in the sai application, is in solution, from the generating boiler is led, the said j in a' state oi'very fine sub-division, and at a steam heating and atomizing the solution, temperature considerably elevated above the which is carried along with the steam to be- 40 normal. I i v applied to the textiles. In; some stage of the normal procedure of The moth proofing compound may also conversion from the raw material into the be'applied-after the finishm of the mute finished article, textiles *of substantially rialand its conversioninto t ial' form.

every character, and particularly .woolens, for instance, in m'aterialsdesigned forg'ar- I 46 are subjected to the'actionpf steamas a ments, the compound'may be applied after,

' ste in the process of manufacturing. the garments are 'tailored and uring the ith floor coverings, for; instance, such pressing thereof. In this-mince the as carpets, steam is used in sizing. With cedure is the same, the compound being substantially all goods, it is applied to the placed in the steam. generatmg boiler, or'i'n 50 web duri'ngithe brushingafter the weaving a separatejtank, as may be desired. I

is completed. .Steam is also used in shrink- Even after the garments or other finished ,ing, a nd those materials, known in theftrade articles have left the shelves of the retailer chines, sue for instance as Hoffman press- :the boiler. question,

the steam is delivered.

ing machines, or t may be done by certaintypes of goose. In the first instance the moth proo ng compound may be used in the boiler of the pressing machine, and the results will be the same, as above described, the machines driving the steam laden with the moth proofing elements through all parts of the. garment.

Materials other than stance as furs, may also be moth proofed, by treating the materials with steam laden with a moth proofing solution. This treatment may take place during the conversion from the raw to the finished state, or in any stage in the life of the material, as may be desired. While a single treatment with the composition forming the subject matter of my above mentioned application is sufiicient to permanently riodical treatment does not injure the material inany manner or shorten the life thereof.

While the present method is especially designed to utilize the moth proofing compound forming the subject matter of my above mentioned application, yet it is applithe same characteristics, that is, an odorless, colorless, stainless, non-corrosive compound, containing an element destructive to moths and moth larvae, but

harmless to vertebrates, and a mordant.

A preferred composition is sodium fluoride and sodium sulphate, and these elements may have compounded therewith other ingredients, as for instance a bitter extract. The compound is applied in solution and as before stated, preferably in a state of fine subdivision and'ata relatively high tempera. ture, about 150 F. It will be evident from the description, that applying the solution in the manner set in the normal procedure of conversion, no additional steps being required, and no variation from the usual steps. Neither is additional machinery necessary, the machinery usually employed being utilized.

The fluoride and sulphate are both readily soluble, and they may be placed in the water of the may be dissolved ior to placing them in In mac inesof the character in that is those used in cloth finishing, the steam is usually applied bypassing the clothover a steam chest or cylinder, having a multiplicity of perforations,.through which The textiles, such for inmoth proof the article, pe-:

forth will cause no variation 1 boiler inthe dry state, or they I the chest or cylinder forces the steam through the meshes of the cloth, bringing the steam and the moth-proofing solution into intimate contact with every part of the cloth. In pressing machines, the cloth is either steamed during the pressing, or it is moistened prior thereto, in which instance the heated pressing cylinder or the like will heat the moisture and drive it through the meshes of the cloth. In both instances the solution is applied to the cloth hot and is forced into intimate contact with every part thereof.

\Vhen used in a pressing machine, such as those commonly used by tailors, pressers and I ,valeting shops, the machine will be moth-proofed while they all garments pressed upon are being pressed, and without varying from the usual procedure. Furs and thelike may be treated with the solution in the form of steam 0r vapor, in order to mothproof them, and in cleaning and dyeing establishments wherefurs are handled, the solution, may be applied in connection with some stage of the usual procedure. The solution is non-corrosive and does not stain, so that there is no possibility of injury to the most delicate fabric.

It will be understood that when steam is referred to, the low pressure moist steam used in the treatment of textiles is meant, and not live or super-heated steam.. In the treatment of textiles, and especially in pressing, the steam is applied intermittently.

-W hen the reservoir or source of steam is chemicals destructive .to moths and moth larvae, which consists in treating the textiles with steam laden with the said chemicals, thereby to expand the meshes of the textile and to deposit the chemicals in the interstices thereon 2. The method of moth proofing textiles, which consists in treating the textiles with steam, laden with sodium fluoride, associated with a chemical designed to fix the fluoride in the textile, thereby to expand the meshes of the textileand to deposit the fluoride and associated chemical, in the interstices thereof.

3. The method of moth-proofing textiles,

which comprises forcing through the meshes of the textile steam laden with a nebulized solution, containing sodium fluoride and sodium sulphate.

Signed at New ork in the county of New York and State of of July, 'A- D- I aosern-it Boss.

New York this 22nd day 

